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Finding the Fourth Proportional to 45,361.98, 68,037.54 and 12,084.48

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Solution

The fourth proportional to 45,361.98, 68,037.54 and 12,084.48 is: 18,125.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,361.98 : 68,037.54 = 12,084.48 : x
  2. Step 2: Convert to fraction form
    45,361.98/68,037.54 = 12,084.48/x
  3. Step 3: Cross multiply
    45,361.98x = 68,037.54 × 12,084.48
  4. Step 4: Simplify right side
    45,361.98x = 822,198,291.38
  5. Step 5: Solve for x
    x = 822,198,291.38/45,361.98
  6. Step 6: Final answer
    x = 18,125.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.